New blade upgrades are available at five-level milestones through level 50. At the forge, inspect the blade’s requirements and displayed effects before choosing an upgrade.
How katana upgrades unlock
Fight players or enemies to level up, then check the forge at each five-level milestone. The official listing identifies level 50 as the final blade-upgrade milestone.
The available checkpoints are 5, 10, 15, 20, 25, 30, 35, 40, 45 and 50. Unlocking an option does not by itself prove that the blade has been equipped.
Compare blade effects
Player guides say different blades can offer passives or change walking speed. At the forge, compare the displayed level requirement, cost and effects with your current weapon.
The available sources do not provide a complete, verified table of weapon names and numerical values.
Check the forge
A community walkthrough describes heating the blade, striking it while hot, reheating it if it cools and continuing through dipping and finishing.
Prism reports a forged result with two dashes. This is one narrated example and does not establish the dash benefit of every blade. Follow the game’s forge prompts for the weapon you select.
Muramasa and blade progression
The official Akayuki Roblox community describes forging your blade through the ranks toward Muramasa. It does not provide a complete blade list or state Muramasa’s exact unlock level, cost or stats.
When comparing names in guides, check that the source refers to AKAYUKI: Steel Blossoms Red on Roblox. Similarly named weapons in other games do not establish the stats of this one.
Choosing what to try
First check that you meet the displayed requirement and can afford the option. Then compare its stated effects with your current blade.
After equipping a new weapon, practice familiar movement and cuts before judging how it fits your playstyle. Equipment can help, but it does not replace timing and positioning.
Choosing a katana: what is known
A reliable best-katana ranking needs comparable weapon names, unlock levels, costs and effects. The supplied videos do not provide a complete verified table, and automatic captions can mishear names.
Use the details shown in your game while the weapon database is being researched.
Frequently Asked Questions
How often are blade upgrades available?
The official listing says every five levels, with the final blade upgrade at level 50.
Which katana is best?
The sources do not provide a complete, comparable stat table, so we cannot name a verified best katana.
Do all blades have the same dash benefits?
One player reports a forged result with two dashes. That single example does not establish the dash count for every blade.
Sources
Official Roblox listing · Official Akayuki Roblox community · Community beginner walkthrough · ItzVexo: blades · 00:32 · Radex: progression · 00:18 · Prism: forging · 02:52